As previously reported, the odd couple is teaming up for a jazz album that will feature a Big Band and a big time composer, who Bennett is trying to keep a secret.

“I can’t mention the composer because I don’t want anybody to do it before we do it, but there’s a great composer that’s very underrated, very famous, but not as famous as Gershwin or Porter,” Bennett told Rolling Stonelast year. “But he did as many hit songs as anybody, and so we’re gonna do a big swinging album.”

Along with this joint venture, which has no release date as of yet, Lady Gaga is slowly but surely working on ARTPOP, her follow-up to 2011’s Born This Way.

Though it was originally slated for a spring release, according to her producer, Zedd, Gaga’s Little Monsters might have to wait a bit longer.

“We’ve been working on it for over a year now,” he told MTV News. “There’s still a lot of work left, so we’re definitely gonna work on this project for the next month.”

Gaga is currently touring the country with her Born This Way Ball and will be out on the road until the end of March.

In the meantime, what songs would you like to hear Tony and Gaga record together?